Post cap



FIG. 1 is a perspective view of a post cap;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines in FIG. 7 depict portions of the post cap that form no part of the claimed design. The dash-dot lines shown in FIG. 7 illustrate a boundary line and form no part of the claimed design. 

CLAIM The ornamental design for a post cap, as shown and described. 